2 FreeRTOS V9.0.0rc1 - Copyright (C) 2016 Real Time Engineers Ltd.
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5 VISIT http://www.FreeRTOS.org TO ENSURE YOU ARE USING THE LATEST VERSION.
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7 This file is part of the FreeRTOS distribution.
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9 FreeRTOS is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License (version 2) as published by the
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11 Free Software Foundation >>>> AND MODIFIED BY <<<< the FreeRTOS exception.
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13 ***************************************************************************
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14 >>! NOTE: The modification to the GPL is included to allow you to !<<
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15 >>! distribute a combined work that includes FreeRTOS without being !<<
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16 >>! obliged to provide the source code for proprietary components !<<
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17 >>! outside of the FreeRTOS kernel. !<<
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18 ***************************************************************************
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20 FreeRTOS is distributed in the hope that it will be useful, but WITHOUT ANY
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21 WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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22 FOR A PARTICULAR PURPOSE. Full license text is available on the following
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23 link: http://www.freertos.org/a00114.html
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25 ***************************************************************************
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27 * FreeRTOS provides completely free yet professionally developed, *
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28 * robust, strictly quality controlled, supported, and cross *
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29 * platform software that is more than just the market leader, it *
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30 * is the industry's de facto standard. *
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32 * Help yourself get started quickly while simultaneously helping *
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33 * to support the FreeRTOS project by purchasing a FreeRTOS *
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34 * tutorial book, reference manual, or both: *
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35 * http://www.FreeRTOS.org/Documentation *
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37 ***************************************************************************
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39 http://www.FreeRTOS.org/FAQHelp.html - Having a problem? Start by reading
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40 the FAQ page "My application does not run, what could be wrong?". Have you
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41 defined configASSERT()?
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43 http://www.FreeRTOS.org/support - In return for receiving this top quality
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44 embedded software for free we request you assist our global community by
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45 participating in the support forum.
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47 http://www.FreeRTOS.org/training - Investing in training allows your team to
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48 be as productive as possible as early as possible. Now you can receive
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49 FreeRTOS training directly from Richard Barry, CEO of Real Time Engineers
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50 Ltd, and the world's leading authority on the world's leading RTOS.
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52 http://www.FreeRTOS.org/plus - A selection of FreeRTOS ecosystem products,
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53 including FreeRTOS+Trace - an indispensable productivity tool, a DOS
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54 compatible FAT file system, and our tiny thread aware UDP/IP stack.
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56 http://www.FreeRTOS.org/labs - Where new FreeRTOS products go to incubate.
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57 Come and try FreeRTOS+TCP, our new open source TCP/IP stack for FreeRTOS.
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59 http://www.OpenRTOS.com - Real Time Engineers ltd. license FreeRTOS to High
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60 Integrity Systems ltd. to sell under the OpenRTOS brand. Low cost OpenRTOS
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61 licenses offer ticketed support, indemnification and commercial middleware.
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63 http://www.SafeRTOS.com - High Integrity Systems also provide a safety
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64 engineered and independently SIL3 certified version for use in safety and
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65 mission critical applications that require provable dependability.
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70 /******************************************************************************
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71 * This project provides two demo applications. A simple blinky style project
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72 * that demonstrates low power tickless functionality, and a more comprehensive
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73 * test and demo application. The configCREATE_LOW_POWER_DEMO setting, which is
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74 * defined in FreeRTOSConfig.h, is used to select between the two, and to select
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75 * the clock used when demonstrating tickless functionality.
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77 * The simply blinky low power demo is implemented and described in
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78 * main_low_power.c. The more comprehensive test and demo application is
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79 * implemented and described in main_full.c.
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81 * This file implements the code that is not demo specific, including the
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82 * hardware setup and standard FreeRTOS hook functions.
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84 * ENSURE TO READ THE DOCUMENTATION PAGE FOR THIS PORT AND DEMO APPLICATION ON
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85 * THE http://www.FreeRTOS.org WEB SITE FOR FULL INFORMATION ON USING THIS DEMO
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86 * APPLICATION, AND ITS ASSOCIATE FreeRTOS ARCHITECTURE PORT!
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90 /* FreeRTOS includes. */
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91 #include "FreeRTOS.h"
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94 /* SiLabs includes. */
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95 #include "em_chip.h"
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97 #include "bsp_trace.h"
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100 /* Set mainCREATE_LOW_POWER_DEMO to one to run the simple blinky demo, or 0 to
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101 run the more comprehensive test and demo application. */
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102 #define mainCREATE_LOW_POWER_DEMO 0
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104 /*-----------------------------------------------------------*/
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107 * Configure the hardware as necessary to run this demo.
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109 static void prvSetupHardware( void );
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112 * main_low_power() is used when configCREATE_LOW_POWER_DEMO is set to 1.
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113 * main_full() is used when configCREATE_LOW_POWER_DEMO is set to 0.
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115 #if( configCREATE_LOW_POWER_DEMO != 0 )
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116 extern void main_low_power( void );
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118 extern void main_full( void );
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119 #endif /* #if configCREATE_LOW_POWER_DEMO == 1 */
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121 /* Prototypes for the standard FreeRTOS callback/hook functions implemented
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122 within this file. */
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123 void vApplicationMallocFailedHook( void );
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124 void vApplicationIdleHook( void );
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125 void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName );
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126 void vApplicationTickHook( void );
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128 /*-----------------------------------------------------------*/
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132 /* Configure the hardware ready to run the demo. */
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133 prvSetupHardware();
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135 /* The mainCREATE_LOW_POWER_DEMO setting is described at the top
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137 #if( configCREATE_LOW_POWER_DEMO != 0 )
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147 /* Should not get here. */
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150 /*-----------------------------------------------------------*/
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152 static void prvSetupHardware( void )
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154 /* Library initialisation routines. */
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156 BSP_TraceProfilerSetup();
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157 SLEEP_Init( NULL, NULL );
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160 SLEEP_SleepBlockBegin( configENERGY_MODE );
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162 /*-----------------------------------------------------------*/
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164 void vApplicationMallocFailedHook( void )
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166 /* Called if a call to pvPortMalloc() fails because there is insufficient
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167 free memory available in the FreeRTOS heap. pvPortMalloc() is called
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168 internally by FreeRTOS API functions that create tasks, queues, software
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169 timers, and semaphores. The size of the FreeRTOS heap is set by the
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170 configTOTAL_HEAP_SIZE configuration constant in FreeRTOSConfig.h. */
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172 /* Force an assert. */
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173 configASSERT( ( volatile void * ) NULL );
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175 /*-----------------------------------------------------------*/
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177 void vApplicationStackOverflowHook( TaskHandle_t pxTask, char *pcTaskName )
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179 ( void ) pcTaskName;
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182 /* Run time stack overflow checking is performed if
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183 configCHECK_FOR_STACK_OVERFLOW is defined to 1 or 2. This hook
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184 function is called if a stack overflow is detected. */
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186 /* Force an assert. */
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187 configASSERT( ( volatile void * ) NULL );
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189 /*-----------------------------------------------------------*/
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191 void vApplicationIdleHook( void )
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193 volatile size_t xFreeHeapSpace;
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195 /* This is just a trivial example of an idle hook. It is called on each
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196 cycle of the idle task. It must *NOT* attempt to block. In this case the
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197 idle task just queries the amount of FreeRTOS heap that remains. See the
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198 memory management section on the http://www.FreeRTOS.org web site for memory
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199 management options. If there is a lot of heap memory free then the
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200 configTOTAL_HEAP_SIZE value in FreeRTOSConfig.h can be reduced to free up
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202 xFreeHeapSpace = xPortGetFreeHeapSize();
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204 /* Remove compiler warning about xFreeHeapSpace being set but never used. */
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205 ( void ) xFreeHeapSpace;
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207 /*-----------------------------------------------------------*/
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209 void vApplicationTickHook( void )
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211 /* The full demo includes tests that run from the tick hook. */
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212 #if( configCREATE_LOW_POWER_DEMO == 0 )
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214 extern void vFullDemoTickHook( void );
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216 /* Some of the tests and demo tasks executed by the full demo include
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217 interaction from an interrupt - for which the tick interrupt is used
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218 via the tick hook function. */
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219 vFullDemoTickHook();
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223 /*-----------------------------------------------------------*/
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225 /* configUSE_STATIC_ALLOCATION is set to 1, so the application must provide an
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226 implementation of vApplicationGetIdleTaskMemory() to provide the memory that is
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227 used by the Idle task. */
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228 void vApplicationGetIdleTaskMemory( StaticTask_t **ppxIdleTaskTCBBuffer, StackType_t **ppxIdleTaskStackBuffer, uint16_t *pusIdleTaskStackSize )
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230 /* If the buffers to be provided to the Idle task are declared inside this
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231 function then they must be declared static - otherwise they will be allocated on
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232 the stack and so not exists after this function exits. */
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233 static StaticTask_t xIdleTaskTCB;
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234 static StackType_t uxIdleTaskStack[ configMINIMAL_STACK_SIZE ];
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236 /* Pass out a pointer to the StaticTask_t structure in which the Idle task's
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237 state will be stored. */
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238 *ppxIdleTaskTCBBuffer = &xIdleTaskTCB;
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240 /* Pass out the array that will be used as the Idle task's stack. */
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241 *ppxIdleTaskStackBuffer = uxIdleTaskStack;
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243 /* Pass out the size of the array pointed to by *ppxIdleTaskStackBuffer.
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244 Note that, as the array is necessarily of type StackType_t,
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245 configMINIMAL_STACK_SIZE is specified in words, not bytes. */
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246 *pusIdleTaskStackSize = configMINIMAL_STACK_SIZE;
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248 /*-----------------------------------------------------------*/
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250 /* configUSE_STATIC_ALLOCATION and configUSE_TIMERS are both set to 1, so the
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251 application must provide an implementation of vApplicationGetTimerTaskMemory()
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252 to provide the memory that is used by the Timer service task. */
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253 void vApplicationGetTimerTaskMemory( StaticTask_t **ppxTimerTaskTCBBuffer, StackType_t **ppxTimerTaskStackBuffer, uint16_t *pusTimerTaskStackSize )
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255 /* If the buffers to be provided to the Timer task are declared inside this
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256 function then they must be declared static - otherwise they will be allocated on
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257 the stack and so not exists after this function exits. */
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258 static StaticTask_t xTimerTaskTCB;
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259 static StackType_t uxTimerTaskStack[ configTIMER_TASK_STACK_DEPTH ];
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261 /* Pass out a pointer to the StaticTask_t structure in which the Timer
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262 task's state will be stored. */
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263 *ppxTimerTaskTCBBuffer = &xTimerTaskTCB;
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265 /* Pass out the array that will be used as the Timer task's stack. */
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266 *ppxTimerTaskStackBuffer = uxTimerTaskStack;
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268 /* Pass out the size of the array pointed to by *ppxTimerTaskStackBuffer.
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269 Note that, as the array is necessarily of type StackType_t,
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270 configMINIMAL_STACK_SIZE is specified in words, not bytes. */
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271 *pusTimerTaskStackSize = configMINIMAL_STACK_SIZE;
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